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The force required to pull a body of mass 25kg upa plane inclined at an angle 30degree to the horizontal is 300N. calculate the coefficient of friction between the 2 surface in contact. Write the free body diagram.
Roberto reaches out of a window and tosses a rock straight up with a speed of 19.3 m/s. The ball is 30.6 meter above the ground when he releases it. Calculate the speed of the rock upon impact with the ground
A 56 kg astronaut stands on a bathroom scale inside a rotating circular space station. The radius of the space station is 250 m. The bathroom scale reads 42 kg. At what speed does the space station floor rotate
A barge is hauled along a straight-line section of canal by twohorses harnessed to tow ropes and walking along the tow paths oneither side of the canal. Each horse pulls with a force of480 N at an angle of 14° with the centerline of the canal. What i..
A 5 turn loop of wire with a radius of 4cm moves toward a 0.15T magnetic field in a 3 second time interval. What is the average emf induced in the loop? If the loop has a resistance of 5 ohm, what current is generated?
A 10 g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. (a) How much energy was lost in the collision? (b) Calculate the average force exerted on ..
The moon is 1.5 x 108 km from the sun’s center and 3.9 x 105 km from Earth’s center. If the masses of the moon, Earth, and the sun are 7.3 x 1022 kg, 6.0 x 1024 kg, and 2.0 x 1030 kg, respectively, discover the ratio of the gravitational forces exert..
A particle of charge of +3.50 10-6 C is 12.0 cm distant from a second particle of charge of -2.10 10-6 C. Calculate the magnitude of the electrostatic force between the particles. N
What potential difference is required to bring the proton to rest? What potential difference is required to reduce the initial speed of the proton by a factor of 2? What potential difference is required to reduce the initial kinetic energy of the pro..
the four wires that lie at the corners of a square of side a 3.40cm are carrying equal currents i1.80amps into or out
What is wind velocity
how fast is the bag moving when the bults exits. If you wish to find the distance traveled using the equation d = 1/2 at2, what value should you use for a.
One kilowatt·hour (kW·h) is the amount of work orenergy generated when one kilowatt of power is supplied for a timeof one hour. A kilowatt·hour is the unit of energy used bypower companies when figuring out your electric bill. Determine the number..
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